8 
MUSEUM BULLETIN NO. 29 . 
Entomis brookei n. sp.„ 
Plate II, figures 7, 8, 9, and 10. 
This species is characterized by surface ornamentation of diverse 
character consisting of areas of coarse and fine lines. The central part 
of the carapace bears a coarse sculpture comparable with that of E. vari- 
ostriata . This merges rather abruptly into a much finer variety of striae 
which extends ta the margin of the shell. These sharply contrasted types 
of ornamentation distinguish this ostracode from any other species known 
to me. This species is named for R. A. Brooke, who assisted in collecting 
this fauna. 
Horizon and Locality. Simpson shale; Mackenzie river 5 miles above 
Rabbitskin river. 
